328994091383 has 4 divisors (see below), whose sum is σ = 336645116808. Its totient is φ = 321343065960.

The previous prime is 328994091373. The next prime is 328994091403. The reversal of 328994091383 is 383190499823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 383190499823 = 143461 ⋅2671043.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328994091383 is a prime.

It is a super-2 number, since 2×328994091383² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328994091323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3825512648 + ... + 3825512733.

It is an arithmetic number, because the mean of its divisors is an integer number (84161279202).

Almost surely, 2^328994091383 is an apocalyptic number.

328994091383 is a deficient number, since it is larger than the sum of its proper divisors (7651025425).

328994091383 is an equidigital number, since it uses as much as digits as its factorization.

328994091383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7651025424.

The product of its (nonzero) digits is 10077696, while the sum is 59.

The spelling of 328994091383 in words is "three hundred twenty-eight billion, nine hundred ninety-four million, ninety-one thousand, three hundred eighty-three".